The problem of "contaminated data" is a topic I've brought up in how it relates to a hypothetical ceiling on technological progress.
Technology can reach a "convenience inflection point", beyond which the tech does so much for humans that humans lose the knowledge and the cognitive skill to create the tech in the first place.
The tech then becomes contaminated by data inputted from cognitively regressed human sources, and eventually is impossible to maintain, let alone innovate. Possibly this could explain Fermi's Paradox.
